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'works', 'The History of the Jews' and 'Philosophy of Logic'
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6 ideas
5. Theory of Logic / A. Overview of Logic / 2. History of Logic
18954
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Before the late 19th century logic was trivialised by not dealing with relations [Putnam]
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5. Theory of Logic / A. Overview of Logic / 5. First-Order Logic
18956
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Asserting first-order validity implicitly involves second-order reference to classes [Putnam]
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5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic
18962
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Unfashionably, I think logic has an empirical foundation [Putnam]
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5. Theory of Logic / E. Structures of Logic / 1. Logical Form
4730
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For Aristotle, the subject-predicate structure of Greek reflected a substance-accident structure of reality [Aristotle, by O'Grady]
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5. Theory of Logic / E. Structures of Logic / 5. Functions in Logic
18961
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We can identify functions with certain sets - or identify sets with certain functions [Putnam]
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5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth
18955
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Having a valid form doesn't ensure truth, as it may be meaningless [Putnam]
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